Hi guys having trouble with the fan not working in the van. I have checked all the fuses and all are good. Strange thing is the radio was not working also but after I pulled the fuses they both worked. After a couple of minutes the fan died again but the radio still worked. I pulled all the fuses again but this time the fan did not start but the radio is fine. Its a Kontiki on a 53 plate. Any suggestions on what to try next.